TWI721881B - Cable concentrator and electronic device having the same - Google Patents

Abstract

The disclosure relates to a cable concentrator, configured for the insertion of a plurality of cable connectors. The cable concentrator includes a main body and a ground partition plate. The main body includes a plurality of sidewall portions and a bottom plate portion. The sidewall portions are connected to the bottom plate portion and form an accommodation portion with the bottom plate portion for accommodating the cable connectors. The bottom plate portion has a plurality of positive terminal holes and a plurality of negative terminal hole. The ground partition plate is in the accommodation portion and includes a partition portion and a plurality of ground bent tabs. The partition portion divides the accommodation portion. The ground bent tabs are connected to a side of the partition portion and respectively correspond to the negative terminal holes. In addition, the disclosure also relates to an electronic device having the cable concentrator.

Description

Hub and electronic device containing it

The present invention relates to a hub, in particular to a hub containing a grounding partition and an electronic device containing the same.

With the advancement of science and technology, electronic products such as computers or servers have become more and more complex. These circuits may include signal lines connected to the main power supply, speakers, light-emitting devices and circuit boards. Many and across different areas in the product chassis.

However, the space in the case is usually narrow and limited. Therefore, during the assembly process, it is very important for the assembler to correctly insert the signal wires from different places into specific terminals on the same circuit board. It is not easy, and after being inserted into the circuit board, the signal lines of different sources will interfere with each other. If you do not try to reduce it, the quality of the signal transmission will be affected.

In view of this, the present invention provides a hub and an electronic device containing it, which can solve the aforementioned problems of inconvenience in circuit assembly and signal interference.

An electronic device disclosed according to an embodiment of the present invention is suitable for providing Multiple thread plugs. The electronic device includes a circuit board, a housing frame and a hub. The hub includes a main body and a grounding partition. The circuit board includes a plurality of positive terminals and a plurality of negative terminals. The accommodating frame is arranged on the circuit board and has an accommodating space. The positive terminal and the negative terminal are located in the accommodating space. The main body is detachably arranged in the accommodating space. The main body includes a plurality of side wall portions and a bottom plate portion. The side wall part is connected to the bottom plate part and surrounds an accommodating part together with the bottom plate part. The accommodating part is used for accommodating the thread end. The bottom plate portion has a plurality of positive terminal perforations respectively for the positive terminal to penetrate and a plurality of negative terminal perforations for the negative terminal to penetrate respectively. The grounding partition is located in the accommodating part and includes a partition board and a plurality of grounding feet. The partition part separates the accommodating part of the main body. The grounding feet are connected to one side of the partition plate and respectively correspond to the holes of the negative terminal of the bottom plate and are electrically connected to the negative terminal, so that the negative terminal is grounded together.

According to an embodiment of the present invention, a hub is disclosed, which is suitable for plugging a plurality of thread heads. The hub includes a main body and a grounding partition. The main body includes a plurality of side wall portions and a bottom plate portion. The side wall part is connected to the bottom plate part and surrounds an accommodating part together with the bottom plate part. The accommodating part is used for accommodating the thread end. The bottom plate has a plurality of positive terminal perforations and a plurality of negative terminal perforations. The grounding partition is located in the accommodating part and includes a partition board and a plurality of grounding feet. The partition part separates the accommodating part of the main body. The grounding feet are connected to one side of the partition plate and respectively correspond to the negative terminal holes of the bottom plate.

The hub and the electronic device including the hub disclosed in the foregoing embodiments of the present invention can be accommodated in the hub and then inserted into the corresponding terminals on the circuit board along with the hub, thereby greatly improving the convenience of circuit assembly. In addition, the grounding separator in the hub can separate the accommodating part of the main body and have the function of separating and supporting the thread. Its grounding foot can also be used to perforate the negative terminal of the corresponding main body, thereby making the electricity The negative terminal on the circuit board forms a common ground, which helps to reduce the signal interference between the wire ends, thereby further improving the quality of signal transmission.

The above description of the disclosure of the present invention and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

1, 1’, 1": Hub

7: Thread

8: containing frame

9: Circuit board

110: main body

111: bottom plate

113: Side Wall

130, 130’, 130”: grounding partition

131, 131’, 131": Partition board

133, 133’, 133": Grounding feet

150: Elastic limit arm

151: Extension

153: Limit

920: negative terminal

910: Positive terminal

1111: terminal perforation

1111a: Positive terminal punch

1111a1, 1111b1: guide slope

1111b: Negative terminal perforation

1131: Chute

1132: Convex Rib

1310: protruding structure

1311": Separating board body

1331: Piercing

ED: Electronic device

S1: Housing space

S2: Containment part

FIG. 1 is a three-dimensional schematic diagram of an electronic device including a hub according to an embodiment of the present invention.

Figures 2 to 3 are exploded schematic diagrams of the electronic device of Figure 1.

FIG. 4 is a schematic side sectional view of the electronic device of FIG. 1. FIG.

FIG. 5 is a schematic top view of the electronic device of FIG. 1.

Fig. 6 is an exploded schematic diagram of a hub according to another embodiment of the present invention.

Fig. 7 is an exploded schematic diagram of a hub according to yet another embodiment of the present invention.

The detailed features and advantages of the present invention will be described in detail in the following embodiments. The content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and drawings. In this way, anyone who is familiar with the relevant art can easily understand the purpose and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention by any viewpoint. Domain.

In addition, the embodiments of the present invention will be disclosed in the following drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the present invention.

Moreover, for the purpose of neatness of the drawing, some conventionally used structures and elements may be drawn in a simple schematic manner in the drawing. In addition, some of the features in the drawings of this case may be slightly enlarged or their scales or sizes may be changed to achieve the purpose of facilitating the understanding and viewing of the technical features of the present invention, but this is not intended to limit the present invention. The actual size and specifications of the product manufactured in accordance with the content disclosed in the present invention should be adjusted according to the requirements during production, the characteristics of the product itself, and the content disclosed in the following in conjunction with the present invention, and it is hereby stated.

In addition, the terms "end", "part", "part", "area", "location" and other terms may be used in the following text to describe specific elements and structures or specific technical features on or between them, but these elements And structure is not limited by these terms. In the following, the term "and/or" may also be used, which refers to a combination of one or all of one or more of the listed related elements or structures. In the following text, terms such as "substantially", "substantially", "about" or "approximately" may also be used. When used in combination with a range of size, concentration, temperature, or other physical or chemical properties or characteristics, it is intended to cover possible Deviations in the upper and/or lower limits of the range of these properties or characteristics may indicate allowable manufacturing tolerances or acceptable deviations caused by the analysis process, but the expected results can still be achieved.

Furthermore, unless otherwise defined, all words or terms used herein, Including technical and scientific vocabulary and terms, etc., contain their usual meanings, and their meanings can be understood by those who are familiar with this technical field. Furthermore, the above-mentioned definitions of vocabulary or terms should be interpreted in this specification as including meaning consistent with the technical field related to the present invention. Unless there is a clear definition, these words or terms will not be interpreted as too ideal or formal meaning.

First of all, please refer to FIG. 1. An embodiment of the present invention provides an electronic device ED, which is suitable for inserting and electrically connecting a plurality of wire heads 7. The wire head 7 described here may be, for example, a signal wire. The present invention is not limited to the number and types of thread heads 7 that the electronic device ED can support, and the “multiple” mentioned in the present invention can refer to a number including two or more than two. Moreover, in this embodiment, the electronic device ED can gather these wire ends 7 into a bundle and then electrically connect to the circuit board 9, so as to facilitate the operation of inserting the wire ends 7 on the circuit board 9.

In detail, please continue to refer to FIGS. 2 to 4, where FIGS. 2 to 3 are exploded schematic diagrams of the electronic device ED, and FIG. 4 is a schematic side sectional view of the electronic device ED. In this embodiment, the electronic device ED may include the aforementioned circuit board 9, a accommodating frame 8 and a hub 1. The circuit board 9 is a carrier for fixing the electronic components (not shown) required by the electronic product to which it is applied. In one application, the circuit board 9 can be applied to the front panel of a computer or server, but The present invention is not limited to the design of the circuit board 9, the electronic components thereon, and the environment or electronic products in which it is applied. In this embodiment, the circuit board 9 may be provided with a plurality of positive terminals 910 and negative terminals 920, respectively corresponding to and used to electrically connect with the aforementioned wire head 7, but the number and arrangement of the positive terminals 910 and the negative terminals 920 It can be adjusted according to actual needs, and the present invention is not limited to this.

The accommodating frame 8 is disposed on the circuit board 9. In this embodiment, the accommodating frame 8 may be a frame surrounding the positive terminal 910 and the negative terminal 920. As shown in the figure, the accommodating frame 8 is a slightly rectangular frame. Body to accommodate the positive terminal 910 and the negative terminal 920 in the accommodating space S1. The accommodating space S1 described here can be used to accommodate the hub 1, so its size and shape can be adjusted according to the hub 1 or the arrangement of the positive terminal 910 and the negative terminal 920 in the hub 1, and the present invention is not limited to this. .

As shown in the figure, the aforementioned thread head 7 can be inserted into the hub 1 in a centralized manner, and then stored and inserted in the accommodating space S1 of the accommodating frame 8 together with the hub 1, so that the thread head 7 can be correctly electrically connected. The corresponding positive terminal 910 and the negative terminal 920 are electrically connected.

In detail, in this embodiment, the hub 1 may include a main body 110, a grounding partition 130 and a plurality of elastic limit arms 150. The main body 110 may be, but is not limited to, a structure integrally formed with a plastic material, which is suitable for being detachably received in the accommodating space S1 of the aforementioned accommodating frame 8. The main body 110 may include a bottom plate 111 and a plurality of side walls. The side wall portions 113 and the side wall portions 113 are respectively connected to different sides of the bottom plate 111 to enclose a containing portion S2 together with the bottom plate 111, and the aforementioned thread head 7 can be inserted and collectively stored in the containing portion S2. From a further point of view, the bottom plate portion 111 of the main body 110 may have a plurality of terminal perforations. Here, for the purpose of description, the terminal perforation for the positive terminal 910 is defined as the positive terminal perforation 1111a, and the negative terminal 920 is perforated. The terminal perforations are negative terminal perforations 1111b. The number and arrangement of these positive terminal perforations 1111a and negative terminal perforations 1111b can correspond to the positive terminal 910 and the negative terminal 920 on the circuit board 9, and can be accommodated in the main body 110 In the space S1, the seasonal positive terminal 910 and the negative terminal 920 are one-to-one through the corresponding positive terminal hole 1111a Hole 1111b with the negative terminal. In addition, two of the side wall portions 113 of the main body 110 opposite to each other may each have a sliding groove 1131, which can provide a guide for the grounding partition 130 when the grounding partition 130 is installed in the accommodating portion S2. , So that the grounding partition 130 can be assembled in the accommodating portion S2 along a predetermined direction.

The grounding partition 130 may include a partition plate portion 131 and a plurality of grounding feet 133. The partition plate portion 131 can be inserted into the accommodating portion S2 along the sliding groove 1131 of the side wall portion 113 of the main body 110 to connect the accommodating portion S2 is divided into two smaller sub-spaces (not labeled), thereby dividing the thread heads 7 located in the accommodating part S2 into two groups, and can provide support for the thread heads 7 of these two groups, avoiding the thread The head 7 is skewed in the accommodating portion S2. It is supplemented that, considering factors such as the demand for miniaturization and the limitation of plastic molding, the partition plate portion 131 for separating the accommodating portion S2 is suitable to be made of a metal material to achieve the required thinness. In addition, in order to securely fix the partition plate portion 131 in the accommodating portion S2, in this embodiment, the partition plate portion 131 has a protrusion structure 1310 on opposite sides of the sliding groove 1131 to avoid the partition plate. The part 131 slips out from the chute 1131.

In this embodiment, the grounding feet 133 may be, but not limited to, an integrally formed structure with the partition plate portion 131, and the grounding feet 133 are connected to the same side of the partition board portion 131 and can substantially hang on the partition plate.部131. The grounding feet 133 can be stacked on or on the bottom plate 111 of the main body 110, and respectively correspond to the negative terminal holes 1111b through which the negative terminal 920 passes. In this embodiment, the grounding feet 133 each have a perforation 1331, and these perforations 1331 respectively correspond to the negative terminal perforation 1111b on the bottom plate 111 of the main body 110 for the negative terminal 920 to pass through, and therefore act as a hub When 1 is housed in the accommodating space S1 of the accommodating frame 8, the negative terminal 920 on the circuit board 9 can pass through the negative terminal hole 1111b on the bottom plate 111 of the main body 110 of the hub 1 and the grounding separator 130 The through hole 1331 of the leg 133, and the positive terminal 910 on the circuit board 9 penetrates the through hole 1111a of the positive terminal on the bottom plate 111, wherein the aperture of the through hole 1331 of the grounding leg 133 of the ground separator 130 may be substantially smaller than The negative terminal perforation 1111b on the bottom plate 111 of the main body 110 is, for example, at least smaller than the outer diameter of the negative terminal 920. Therefore, when the negative terminal 920 is penetrated through the perforation 1331, it can directly contact the grounding pin 133 to form an electrical connection with it. The aperture size of the positive terminal through hole 1111a on the bottom plate 111 of the main body 110 is not particularly limited, and it can be substantially larger, equal to, or slightly smaller than the outer diameter of the positive terminal 910 or the negative terminal 920 inserted therein.

In addition, as shown in the figure, in this embodiment or other embodiments, the part of the main body 110 where one end of the positive terminal through hole 1111a is formed (especially the part near the outer side of the bottom plate 111 that surrounds the positive terminal through hole 1111a) has A plurality of guiding inclined surfaces 1111a1, which surround the positive terminal through hole 1111a forming the entrance for the positive terminal 910 to be inserted, and are inclined with respect to the bottom surface of the bottom plate 111 to guide the positive terminal 910 into the positive terminal through hole 1111a. Similarly, the negative terminal perforation 1111b, the main body 110 where one end of the negative terminal perforation 1111b is formed (especially the part near the outer side of the bottom plate 111 that surrounds the negative terminal perforation 1111b) has a plurality of guiding slopes 1111b1. The lead slope 1111b1 surrounds the entrance of the negative terminal through hole 1111b for the negative terminal 920 to be inserted. It is inclined with respect to the bottom surface of the bottom plate 111 to guide the negative terminal 920 into Insert the negative terminal hole 1111b.

The elastic limit arm 150 can be, but is not limited to, an integrally formed structure with the main body 110. The elastic limit arm 150 can extend from the side wall portion 113 of the main body 110 away from the bottom plate 111 to a direction away from the bottom plate 111 to make the elastic The height of the limiting arm 150 exceeds the top surface of the side wall portion 113. The elastic limit arm 150 can be made of elastic material such as plastic, so a moderate external force can force it to produce a recoverable deformation. Further, in this embodiment, the elastic limiting arm 150 may include an extension portion 151 and a limiting portion 153. The limiting portion 153 is connected to the side wall portion 113 of the main body 110 via the extension portion 151, and the limiting portion 153 The extending portion 151 protrudes inwardly from the distal end away from the main body 110 and extends toward the opposite side of the limiting portion 153 to be slightly hook-shaped. It is understandable that when the thread head 7 is received in the receiving portion S2 of the main body 110, the thread head 7 can be pushed against the limiting portion 153 of the elastic limiting arm 150 to drive the extension portion 151 to bend and deform. When the head 7 enters the accommodating portion S2, the thread 7 slides over the limiting portion 153 and no longer pushes against the limiting portion 153. At this time, the extension portion 151 is reset and the limiting portion 153 is stopped by the thread 7 away from the main body 110. One side of the bottom plate portion 111, as shown in FIG. 5, limits the thread stub 7 to the receiving portion S2.

However, it is supplemented that the number of elastic limit arms 150 can be adjusted according to actual needs. The present invention is not limited to this. In addition, in some other embodiments, the hub of the present invention may not even have the aforementioned elastic limit arms. 150. In this case, the thread can also be firmly fixed in the accommodating portion of the main body by tightly fitting with the inner wall surface of the side wall portion of the main body.

In addition, as shown in Figures 2 and 5, in this embodiment, the master of the hub 1 Part of the side wall portion 113 of the body 110 also has at least one rib 1132, which protrudes inwardly from the side wall portion 113 and is located in the accommodating portion S2 of the main body 110, and part or all of the ribs 1132 can extend in length. But it is not limited to at least less than the height of the side wall portion 113. It can also be said that the length of part or all of the ribs 1132 can be but not limited to be less than the depth of the accommodating portion S2. As shown in the figure, at least some of the ribs 1132 may not extend. Keep a distance from the bottom plate 111 to the bottom plate 111. These protruding ribs 1132 help to properly separate the wire 7 in the process of inserting the wire 7 and help maintain the wire 7 in the main body 110 in alignment with the corresponding positive terminal through hole 1111a and the negative terminal through hole 1111b. s position.

It can be seen from this that for assembly, the assembler can first insert the thread head 7 into the accommodating portion S2 of the main body 110 of the hub 1, wherein the thread stub 7 can be limited to the accommodating portion 153 of the elastic limiting arm 150 S2, on the other hand, the thread stubs 7 can be divided into two groups by the partition plate 131 of the grounding partition 130 without falling relatively close to each other. At the same time, the thread stubs 7 of each group can be received by the side wall of the main body 110. The ribs 1132 on the 113 are separated from each other and can correspond to the positive terminal through hole 1111a and the negative terminal through hole 1111b of the bottom plate 111 of the main body 110 respectively. Among them, part of the thread ends 7 also correspond to the ground separator 130 respectively. The perforation 1331 of the grounding foot 133. With this operation, the wire ends 7 that need to be electrically connected to the positive terminal 910 and the negative terminal 920 of the circuit board 9 can be concentrated on the hub 1 first. Then, the assembler only needs to insert the hub 1 with the thread head 7 into the accommodating space S1 of the accommodating frame 8, and then the thread head 7 can be accurately and electrically connected to the corresponding positive terminal 910 and the negative terminal 920 at one time. , Wherein the negative terminal 920 can respectively pass through the through hole 1331 of the grounding leg 133 of the grounding separator 130 and directly contact the grounding separator 130, so that it can be connected to the grounding separator 130 The ground feet 133 form a common ground.

It can be seen that with the hub 1 of this embodiment, the assembler can first gather the required wire heads 7 into a bundle, and arrange the wires in advance according to the arrangement of the terminals on the circuit board 9 (that is, the positive terminal 910 and the negative terminal 920). The heads 7 are arranged and arranged, and then these heads 7 are inserted and connected to the corresponding positive terminal 910 and the negative terminal 920 at one time, thereby greatly improving the convenience of circuit assembly. In addition, the ground separator 130 in the hub 1 of this embodiment not only has the function of separating and supporting the wire head 7, but also can electrically connect the wire head 7 for electrical connection with the negative terminal 920, so that the negative electrode The terminal 920 forms a common ground, which helps reduce the signal interference between the wire ends 7 and further improves the quality of signal transmission. In short, the hub 1 of this embodiment can greatly improve the efficiency of assembling circuits and help improve the quality of signal transmission.

However, the ground spacer 130 of the hub 1 of the foregoing embodiment is only one example of the present invention, and the present invention is not limited thereto. For example, please refer to FIG. 6, which is an exploded schematic diagram of a hub 1'according to another embodiment of the present invention. It should be noted that the difference between the hub 1'of the embodiment of FIG. 6 and the hub 1 of the previous embodiment is only grounding. For the design of the partition, only the differences between the two embodiments will be described below, and the same or similar points can be understood by referring to the foregoing description, and will not be repeated here.

As shown in the figure, in this embodiment, the separating plate portion 131' and the grounding flap 133' of the grounding partition 130' of the hub 1'are independent sheet-like structures. Specifically, the separating plate portion Both the 131' and the grounding flap 133' can be a single-piece integrally formed metal plate, and the two metal plates can be electrically connected by welding, adhesive or direct contact or other suitable methods. With this configuration, the ground separator 130' can still electrically connect the wire end 7 electrically connected to the negative terminal 920, thereby achieving the effect of improving the signal transmission quality. Moreover, since the grounding feet 133' can be a monolithic structure that is additionally formed independently of the partition plate portion 131', a configuration with two directly opposite grounding feet 133' can be realized, thereby allowing the positive terminal to be adjacent to each other. Both the negative terminal and the negative terminal can be inserted into the grounding pin 133'.

Or, as shown in FIG. 7, FIG. 7 is an exploded schematic diagram of a hub 1" according to yet another embodiment of the present invention. The difference between the hub 1" of the embodiment of FIG. 7 and the hub 1 of the previous embodiment is also It only lies in the design of the grounding partition. Therefore, the following description will only focus on the differences between the two embodiments. The same or similar points can be understood by referring to the foregoing description, and will not be repeated here.

As shown in the figure, in this embodiment, the partition 131" of the ground partition 130" of the hub 1" is a sheet-like structure with two partitions facing each other. 1311", the grounding flap 133" can be integrally formed and connected to the partition body 1311", wherein the partition part 131" is composed of a two-layer structure of the partition plate body 1311" that is attached to each other, so it can be Compared with the above-mentioned embodiment, the thickness of the separating plate portion of the grounding separator is thicker, which helps to increase the overall structural strength. It is supplemented that the separation plate bodies 1311' can be attached to each other through other suitable methods such as welding, adhesive or direct contact. With this configuration, the ground separator 130" can still electrically connect the wire end 7 electrically connected to the negative terminal 920, so as to achieve the effect of improving the signal transmission quality. Moreover, since the two partition plates 1311" overlap, Therefore, the configuration of two directly opposite grounding pins 133" can be realized, so that the adjacent positive and negative terminals can be inserted into the grounding pins 133".

The hub and the electronic device containing the hub disclosed in the foregoing embodiments of the present invention can be accommodated in the hub and then inserted into the corresponding terminals on the circuit board along with the hub, thereby greatly improving the convenience of circuit assembly. . In addition, the grounding separator in the hub can separate the accommodating part of the main body and have the function of separating and supporting the thread. Its grounding foot can also be used to perforate the negative terminal of the corresponding main body, thereby making the negative electrode on the circuit board. The terminals form a common ground, which helps to reduce the signal interference between the wire ends, thereby further improving the quality of signal transmission.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. All changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of the patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the attached scope of patent application.

1: Hub

7: Thread

8: containing frame

9: Circuit board

ED: Electronic device

Claims (19)

An electronic device suitable for inserting a plurality of thread ends. The electronic device includes: a circuit board including a plurality of positive terminals and a plurality of negative terminals; a housing frame arranged on the circuit board and having a housing Space, the positive terminals and the negative terminals are located in the accommodating space; and a hub, including: a main body detachably disposed in the accommodating space, wherein the main body includes a plurality of side wall portions and a bottom plate portion , The side wall portions are connected to the bottom plate portion and together with the bottom plate portion surround an accommodating portion, the accommodating portion is used for accommodating the wires, and the bottom plate portion has holes for the positive terminals to pass through. A plurality of positive terminal perforations and a plurality of negative terminal perforations respectively for the negative terminals to pass through; and a grounding separator located in the accommodating part and including a partition plate portion and a plurality of grounding feet, the partition plate Partially separates the accommodating portion of the main body, the grounding feet are connected to one side of the partition plate portion and respectively correspond to the negative terminal holes of the bottom plate portion and are electrically connected to the negative terminals, so that The negative terminals are commonly grounded. The electronic device according to claim 1, wherein each of the grounding feet has a through hole, and the through holes of the grounding feet respectively correspond to the through holes of the negative terminals of the bottom plate of the main body. The electronic device according to claim 2, wherein the apertures of the through holes of the grounding feet are at least smaller than the apertures of the negative terminals of the bottom plate of the main body. The electronic device according to claim 1, wherein the partition plate portion and the grounding feet are integrally formed. The electronic device according to claim 1, wherein the partition plate portion and the grounding feet are two independent sheet structures. The electronic device according to claim 4, wherein the partition board portion includes two partition board bodies attached to each other face to face, and the grounding feet are connected to one side of the partition board bodies. The electronic device according to claim 1, wherein at least a part of the side wall portions of the main body each have at least one protruding rib located in the accommodating portion for separating the adjacent wires. The electronic device according to claim 7, wherein the length of at least part of the protruding ribs is smaller than the depth of the accommodating portion. The electronic device according to claim 1, wherein the hub further includes a plurality of elastic limiting arms, each of the elastic limiting arms includes an extension portion and a limiting portion, and the extension portion extends from the side walls of the main body The end portion extends outwardly away from one side of the bottom plate portion, and the limiting portion is connected to the main body through the extension portion and extends inwardly from the extension portion to stop the thread ends away from the side of the bottom plate portion. The electronic device according to claim 1, wherein the bottom plate portion has a plurality of guiding inclined surfaces, and one end of the positive terminal perforations and the negative terminal perforations is formed around. A hub suitable for plugging in a plurality of thread heads. The hub includes: a main body, including a plurality of side wall portions and a bottom plate portion, the side wall portions are connected to the bottom plate portion and jointly surround the bottom plate portion. The accommodating part is used for accommodating the wire ends, the bottom plate part has a plurality of positive terminal perforations and a plurality of negative terminal perforations; and a grounding separator located in the accommodating part and including a partition plate Part and a plurality of grounding feet, the partition plate part separates the accommodating part of the main body, and the grounding feet are connected to one side of the partition plate part and respectively correspond to the negative terminal perforations of the bottom plate part Each of the grounding feet has a through hole, and the through holes of the grounding feet respectively correspond to the through holes of the negative terminals of the bottom plate of the main body. The hub according to claim 11, wherein the apertures of the through holes of the grounding feet are at least smaller than the apertures of the negative terminals of the bottom plate of the main body. The hub according to claim 11, wherein the partition plate portion and the grounding feet are integrally formed. The hub according to claim 11, wherein the partition plate portion and the grounding feet are two independent sheet structures. The hub according to claim 13, wherein the partition plate portion includes two partition plate bodies attached to each other face to face, and the grounding feet are connected to one side of the partition plate bodies. The hub according to claim 11, wherein at least a part of the side wall portions of the main body each have at least one rib located in the accommodating portion for separating the adjacent thread ends. The hub according to claim 16, wherein the length of at least part of the ribs is smaller than the depth of the accommodating portion. The hub according to claim 11, further comprising a plurality of elastic limit arms, each of the elastic limit arms includes an extension portion and a limit portion, and the extension portion is away from the bottom plate from the side wall portions of the main body One side of the portion extends outward, and the limiting portion is connected to the main body via the extension portion and extends inwardly from the extension portion to stop the thread ends away from the side of the bottom plate portion. The hub according to claim 11, wherein the bottom plate portion has a plurality of guiding slopes around one end of the positive terminal perforations and the negative terminal perforations.

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